The correct answer is A. Doctor.
Carpenter, plumber, and electrician are all tradespeople who work with their hands to build and repair things. Doctors, on the other hand, are professionals who have undergone extensive training to diagnose and treat illnesses and injuries.
Blacksmiths are skilled workers who use iron and steel to create tools, weapons, and other objects. Professors are teachers who work at colleges and universities. Lawyers are professionals who specialize in the law.
While all of these occupations are important, only doctors are trained to provide medical care.
